Fitbit Alta vs. Casio G-Shock GBA800 vs. Casio WSD-F20A vs. Garmin 645 Music vs. Apple Series 6

 
Alta
G-Shock GBA800
WSD-F20A
645 Music
Series 6
 FitbitAltaRemove Buy NowCasioG-Shock GBA800Remove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$120$399$450$399
Release20162018201820182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days2 years1 day7 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320240 x 240384 x 480
Sizen/a1.32 inches1.2 inches40mm
Touchn/a
TypeOLEDLCDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a20 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWear OSWatchOS 5
Apps
Music

All Wearables